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GPM VIRS on TRMM unpacked data L1A 1.5 hours 2 km V07 (GPM_1AVIRS) at GES DISC

Metadata Updated: December 6, 2023

This is the new (GPM-formated) TRMM product. It replaces the old TRMM_1A01

    Version 07 is the current version of the data set. Previous versions have been superseded by Version 07.

The 1AVIRS product contains science and housekeeping sensor count data directly from the Visible and Infrared Scanner (VIRS) aboard the TRMM satellite. The data has been unpacked from the spacecraft packets and geolocated. A Level 1A file contains data for a single orbit and has a file size of about 131 MB. There are 16 files of VIRS 1A data produced per day.

The Visible and Infrared Scanner (VIRS) is a five-channel visible/infrared radiometer, which builds on the heritage of the Advanced Very High Resolution Radiometer (AVHRR) instrument flown aboard the NOAA series of Polar-Orbiting Operational Environmental Satellites (POES). The VIRS detects radiation at 1 visible, 2 near infrared and 2 thermal infrared wavelengths, allowing determination of cloud coverage, cloud top height and temperature, and precipitation indices. The central wavelengths for the VIRS channels are 0.63, 1.60,3.75, 10.8, and 12.0 microns. All channels are in operation during the daytime, but only channels 3, 4 and 5 operate during the nighttime.

Spatial coverage is between 38 degrees North and 38 degrees South owing to the 35 degree inclination of the TRMM satellite. This orbit provides extensive coverage in the tropics and allows each location to be covered at a different local time each day, enabling the analysis of the diurnal cycle of precipitation

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date December 1, 2022
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Graphic Preview

Additional Metadata

Resource Type Dataset
Metadata Created Date December 1, 2022
Metadata Updated Date December 6, 2023
Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
Maintainer
Identifier C2264132582-GES_DISC
Data First Published 2021-07-21
Language en-US
Data Last Modified 2021-07-21
Category TRMM, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Tropical Rainfall Measuring Mission (TRMM). 2021-07-29. GPM_1AVIRS. GPM VIRS on TRMM unpacked data L1A 1.5 hours 2 km V07. Greenbelt, MD. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/GPM/VIRS/TRMM/1A/07. https://disc.gsfc.nasa.gov/datacollection/GPM_1AVIRS_07.html. Digital Science Data.
Creator Tropical Rainfall Measuring Mission (TRMM)
Data Presentation Form Digital Science Data
Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/GPM_1AVIRS_05.png
Harvest Object Id 4ec6493f-15d6-4b6b-ae47-f6ca6eb96fef
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/GPM/VIRS/TRMM/1A/07
Metadata Type geospatial
Old Spatial -180.0 -38.0 180.0 38.0
Program Code 026:001
Release Place Greenbelt, MD
Series Name GPM_1AVIRS
Source Datajson Identifier True
Source Hash 0671743d28a576f7df05170fda87c11afb525314efa80d64581fe0ae267468e6
Source Schema Version 1.1
Spatial
Temporal 1997-12-20T00:00:00Z/2014-03-21T23:59:59.999Z

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